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    41 // This file contains benchmarks for QNetworkReply functions.

    42 

    43 #include <QDebug>

    44 #include <qtest.h>

    45 #include <QtTest/QtTest>

    46 #include <QtNetwork/qnetworkreply.h>

    47 #include <QtNetwork/qnetworkrequest.h>

    48 #include <QtNetwork/qnetworkaccessmanager.h>

    49 #include "../../auto/network-settings.h"

    50 

    51 #define BANDWIDTH_LIMIT_BYTES (1024*100)

    52 #define TIME_ESTIMATION_SECONDS (97)

    53 

    54 class tst_qnetworkreply : public QObject

    55 {

    56     Q_OBJECT

    57     private slots:

    58     void limiting_data();

    59     void limiting();

    60 

    61 };

    62 

    63 QNetworkReply *reply;

    64 

    65 class HttpReceiver : public QObject

    66 {

    67     Q_OBJECT

    68     public slots:

    69     void finishedSlot() {

    70         quint64 bytesPerSec = (reply->header(QNetworkRequest::ContentLengthHeader).toLongLong()) / (stopwatch.elapsed() / 1000.0);

    71         qDebug() << "Finished HTTP(S) request with" << bytesPerSec << "bytes/sec";

    72         QVERIFY(bytesPerSec < BANDWIDTH_LIMIT_BYTES*1.05);

    73         QVERIFY(bytesPerSec > BANDWIDTH_LIMIT_BYTES*0.95);

    74         timer->stop();

    75         QTestEventLoop::instance().exitLoop();

    76     }

    77     void readyReadSlot() {

    78     }

    79     void timeoutSlot() {

    80         reply->read(BANDWIDTH_LIMIT_BYTES).size();

    81     }

    82     void startTimer() {

    83         stopwatch.start();

    84         timer = new QTimer(this);

    85         QObject::connect(timer, SIGNAL(timeout()), this, SLOT(timeoutSlot()));

    86         timer->start(1000);

    87     }

    88 protected:

    89     QTimer *timer;

    90     QTime stopwatch;

    91 };

    92 

    93 void tst_qnetworkreply::limiting_data()

    94 {

    95     QTest::addColumn<QUrl>("url");

    96 

    97     QTest::newRow("HTTP") << QUrl("http://" + QtNetworkSettings::serverName() + "/mediumfile");

    98 #ifndef QT_NO_OPENSSL

    99     QTest::newRow("HTTP+SSL") << QUrl("https://" + QtNetworkSettings::serverName() + "/mediumfile");

   100 #endif

   101 

   102 }

   103 

   104 void tst_qnetworkreply::limiting()

   105 {

   106     HttpReceiver receiver;

   107     QNetworkAccessManager manager;

   108 

   109     QFETCH(QUrl, url);

   110     QNetworkRequest req (url);

   111 

   112     qDebug() << "Starting. This will take a while (around" << TIME_ESTIMATION_SECONDS << "sec).";

   113     qDebug() << "Please check the actual bandwidth usage with a network monitor, e.g. the KDE";

   114     qDebug() << "network plasma widget. It should be around" << BANDWIDTH_LIMIT_BYTES << "bytes/sec.";

   115     reply = manager.get(req);

   116     reply->ignoreSslErrors();

   117     reply->setReadBufferSize(BANDWIDTH_LIMIT_BYTES);

   118     QObject::connect(reply, SIGNAL(readyRead()), &receiver, SLOT(readyReadSlot()));

   119     QObject::connect(reply, SIGNAL(finished()), &receiver, SLOT(finishedSlot()));

   120     receiver.startTimer();

   121 

   122     // event loop

   123     QTestEventLoop::instance().enterLoop(TIME_ESTIMATION_SECONDS + 20);

   124     QVERIFY(!QTestEventLoop::instance().timeout());

   125 }

   126 

   127 

   128 QTEST_MAIN(tst_qnetworkreply)

   129 

   130 #include "main.moc"